Invention Grant
- Patent Title: Liquid crystal display device and polarizing plate with a condensing element
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Application No.: US12754123Application Date: 2010-04-05
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Publication No.: US09638955B2Publication Date: 2017-05-02
- Inventor: Hiroyuki Takemoto , Minoru Miyatake
- Applicant: Hiroyuki Takemoto , Minoru Miyatake
- Applicant Address: JP Ibaraki-shi
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-091905 20090406
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; F21V8/00

Abstract:
A liquid crystal display device according to the present invention includes a rear light source device, a rear polarizing plate, a liquid crystal cell including liquid crystal molecules that are substantially perpendicularly aligned during black display, and a front polarizing plate, which are provided in the stated order, wherein: an absorption axis of a polarizer of the rear polarizing plate is perpendicular to an absorption axis of a polarizer of the front polarizing plate; and condensed light in which a half-value angle in a direction perpendicular to the absorption axis of the polarizer of the rear polarizing plate is smaller than a half-value angle in a direction parallel to the absorption axis of the polarizer of the rear polarizing plate enters the rear polarizing plate. According to the present invention, a liquid crystal display device having an excellent front contrast ratio, and a polarizing plate with a condensing element for realizing the liquid crystal display device having the excellent front contrast ratio may be provided.
Public/Granted literature
- US20100253887A1 Liquid crystal display device and polarizing plate with a condensing element Public/Granted day:2010-10-07
Information query
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